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Pygmalion

je napisal:

18mm (3/4" for us) should be plenty for just about anything you want
to pull through it. You can try pulling on the cable to see if it
pulls free but I bet it will. In real life one CAT5 cable will support
2 ethernet LANs but you will need to split out the pairs and punch it
down on 2 keystones. I do think they make a splitter adapter though.
It is not advised to run phone and data in the same cable but I know
people who do. In a residence with limited traffic on each you will
never notice but the LAN will see the ring current if you have
mechanical ringers. In an office with a heavily loaded LAN and lots of
phone calls your data rate will take a hit since most all the packets
sent while the phone is ringing may have to be resent. or so they say
Your mileage will vary depending on cable length, quality and the
type of ringers you have.

I try to pull cables out, but I failed. There are ideas that two
cables (coaxial and UTP) are entangled between themselves on various
places. It is also possible that conduits are layed poorly (to many
90 degree turns and patching conduits using insulating tape). But my
question is of principle natu should conduits be layed in a way
that cables are replaceable? If this is a case this is no longer my
problem but problem of construction company and I am eligible to
request new installation in my flat.

Marko.